“Now it’s done!” he wrote on Twitter. “From the jump I’ve wanted to be a Raider 4 life. One step closer to that! Blessed!!! Business done! Let’s just play now!!!”

The deal is expected to pay Carr about $25 million per season, which will make him the NFL’s highest-paid quarterback. He’s heading into the final year of his first deal, signed after he was taken in the second round of the 2014 draft. That deal will pay him about $5.4 million this season, with the new terms kicking in starting in 2018.

The Raiders have been built with salary-cap flexibility under general manager Reggie McKenzie and are a reported $31 million under the salary cap.